74500213 has 2 divisors, whose sum is σ = 74500214. Its totient is φ = 74500212.

The previous prime is 74500207. The next prime is 74500241. The reversal of 74500213 is 31200547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49028004 + 25472209 = 7002^2 + 5047^2 .

It is a cyclic number.

It is not a de Polignac number, because 74500213 - 2⁹ = 74499701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74500313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37250106 + 37250107.

It is an arithmetic number, because the mean of its divisors is an integer number (37250107).

Almost surely, 2^74500213 is an apocalyptic number.

It is an amenable number.

74500213 is a deficient number, since it is larger than the sum of its proper divisors (1).

74500213 is an equidigital number, since it uses as much as digits as its factorization.

74500213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 74500213 is about 8631.3505895659. The cubic root of 74500213 is about 420.7774959563. Note that the first 3 decimals are identical.

The spelling of 74500213 in words is "seventy-four million, five hundred thousand, two hundred thirteen".